Building a Mash Tun: A DIY Project

As part of my 5 to 10 gallon brewery upgrade project, this step-by-step tutorial on making your own mashtun/lautertun from a picnic cooler will allow you to mash enough grain for ten gallon batches of beer. Featured is a homemade CPVC manifold for separating the wort from the grain and how to add a ball valve to your cooler.

Parts List:
56+ qt Cooler (mine was an old Rubbermaid)
1/2″ ID Clear Vinyl Tubing (~8″ long)
1/2″ CPVC pipe (~5+ ft)
Four 1/2″ CPVC 90 deg Elbows
Seven 1/2″ CPVC Tees
1/2″ x 2″ Brass Nipple (yours may be a different length)
1/2″ Brass Ball Valve
1/2″ Female NPT x 1/2″ Hose Barb
1/2″ Brass Locknut
13/16″ ID x 1/8 Dia O-Ring
7/8″ ID Metal Washer
Teflon Tape
1/2″ CPVC Threaded Adapter (Optional)
1/2″ Male NPT x 1/2″ Nylon Hose Barb (Optional)
1/2″ Male NPT x 1/2″ (or 3/8″) Hose Barb (Optional)

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